Cattron North America 79545 LRM 900 MHz Module User Manual
Laird Controls North America Inc. LRM 900 MHz Module
User Manual
Product Development
LAIRD
LRM Radio Module – Host Interface Specification
900MHz User Manual
Document p/n: 9S02-7954-A501 Rev. A
CONFIDENTIALITY NOTICE
This correspondence and all information contained within are the exclusive, confidential and proprietary
property of Laird. it is not to be reproduced, nor is it or any portion of it to be used by or disclosed to any
other individual or legal entity, without the prior, written approval of Laird. Furthermore, the information
contained within this correspondence is also to be handled in accordance with any and all confidentiality
agreements between Laird and the receiver or user of this information.
.
2015 LAIRD
LRM Radio Module – Host Interface Specification LAIRD
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2015 LAIRD Proprietary and Confidential Page ii
Revision History
Date
Revision
Description
Signature / Date
2010-10-06
EM1
Initial draft
Prepared
Pierre Montreuil
Verified
Approved
2010-10-06
EM2
General revision.
Removed LQI measurement
Updated the configuration section (section 5)
Prepared
Pierre Montreuil
Verified
Approved
2015-11-10
A
Fig 4.8 and 4.9 - Remove remaining references to LQI from
drawings.
Table 4.2 – Rename ESC_END for ESC_SOF
[LaB] Added demodulated analog output on pin 48 and
GND on pin 50
Prepared
Pierre Montreuil
Verified
Approved
Prepared
Verified
Approved
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Table of Contents
1. INTRODUCTION ........................................................................................................................................... 1-1
1.1 PURPOSE ..........................................................................................................................................................1-1
1.2 SCOPE ..............................................................................................................................................................1-1
1.3 APPLICABILITY ................................................................................................................................................1-1
1.4 DEFINITIONS, ACRONYMS ................................................................................................................................1-1
1.4.1 Definitions ..............................................................................................................................................1-1
1.4.2 Acronyms ................................................................................................................................................1-1
2. FEATURES SUMMARY ................................................................................................................................ 2-1
3. HOST INTERFACE DEFINITION ............................................................................................................... 3-2
3.1 PINS ASSIGNMENT ...........................................................................................................................................3-2
3.2 SIGNALS DESCRIPTION .....................................................................................................................................3-3
4. LRM CONFIGURATION CONCEPT .......................................................................................................... 4-4
4.1 I2C ..................................................................................................................................................................4-4
4.2 SPI ..................................................................................................................................................................4-4
4.3 CONSOLE INTERFACE.......................................................................................................................................4-4
4.3.1 “Write” command ...................................................................................................................................4-4
4.3.2 “Read” command ....................................................................................................................................4-5
4.3.3 “Help” command ....................................................................................................................................4-5
4.4 STAND-ALONE TEST MODE .............................................................................................................................4-5
4.5 FIRMWARE DOWNLOAD ...................................................................................................................................4-6
5. REGISTERS MAP SUMMARY .................................................................................................................... 5-7
5.1 REGISTERS DESCRIPTION FIELDS ......................................................................................................................5-7
6. REGISTERS .................................................................................................................................................... 6-8
6.1 SECTION 1 REGISTERS: HARDWARE INFORMATION BLOCK ..............................................................................6-8
6.1.1 HW Part Number ....................................................................................................................................6-8
6.1.2 HW Revision ..........................................................................................................................................6-8
6.1.3 Serial Number .........................................................................................................................................6-8
6.1.4 Default Operation mode ..........................................................................................................................6-8
6.2 SECTION 2 REGISTERS: SOFTWARE INFORMATION BLOCK ...............................................................................6-8
6.2.1 SW Part Number .....................................................................................................................................6-9
6.2.2 SW Revision ...........................................................................................................................................6-9
6.2.3 Register Map Version number ................................................................................................................6-9
6.3 SECTION 5 REGISTERS: RF INTERFACE CONFIGURATION .................................................................................6-9
6.4 SECTION 7 REGISTERS: TEST COMMANDS AND PARAMETERS.........................................................................6-10
7. TEST-SPECIFIC PARAMETERS .............................................................................................................. 7-11
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79545 TRX Module meets Part 15 of the FCC rules and regulations. Compliance with the labeling
requirements, FCC notices is required. In order to comply with FCC Certification requirements, the
Original Equipment Manufacturer (OEM) must fulfill the following requirements.
1. The system integrator must place an exterior label on the outside of the final product
housing the 79545 TRX Module. The figure below shows the contents that must be included
in this label.
2. 79545 TRX Module may only be used with the antennas that have been tested and
approved for use with the module.
LABEL
The OEM must make sure that FCC labeling requirements are met. This includes a clearly visible
exterior label on the outside of the final product housing that displays the contents shown in
below.
WARNING: The 79545 TRX Module has been tested by the FCC for use with other products without
further certification (as per FCC Section 2.1091). Changes or modifications to this device not expressly
approved by Laird could void the user’s authority to operate the equipment.
NOTICE: OEM’s must verify the final end product complies with unintentional radiators (FCC Section
15.107 and 15.109) before providing a declaration of conformity for their final product to Part 15 of the
FCC Rules.
RF Exposure WARNING: This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with minimum distance 20
cm between the radiator and your body. This transmitter must not be co-located or operating in
conjunction with any other antenna or transmitter.
NOTICE: The preceding statement must be included as a CAUTION statement in OEM product
manuals in order to alert users of FCC RF Exposure compliance.
79545 TRX is designed for use in countless wireless applications requiring long range communications
with low energy consumption. To ensure that the final product complies with the all of the regulatory
requirements for the Modular Grant the following integration instructions should be followed. 79545
TRX is limited to OEM installation ONLY. The OEM integrator is responsible for ensuring that the end-
user has no manual instructions to remove or install the module.
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FCC Part 15.19 Warning Statement
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING
TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2) THIS DEVICE
MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED
OPERATION.
FCC Part 15.21 Warning Statement
NOTE: THE GRANTEE IS NOT RESPONSIBLE FOR ANY CHANGES OR MODIFICATIONS NOT EXPRESSLY
APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE. SUCH MODIFICATIONS COULD VOID THE
USER’S AUTHORITY TO OPERATE THE EQUIPMENT.
FCC Part 15.105(b) Warning Statement- (ONLY Required for 15.109-JBP devices)
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in
a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
IC RSS-GEN, Sec 7.1.3 Warning Statement- (Required for license-exempt devices)
ENGLISH:
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the
following two conditions: (1) this device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation of the device.
FRENCH:
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de
licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de
brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le fonctionnement.
IC RSS-GEN, Sec 7.1.2 Warning Statement- (Required for Transmitters)
ENGLISH:
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type
and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio
interference to other users, the antenna type and its gain should be so chosen that the equivalent
isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.
FRENCH:
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une
antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans
le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir
le type d'antenne et son gain de sorte que la puissance isotrope rayonnée quivalente (p.i.r.e.) ne dépassepas
l'intensité nécessaire à l'établissement d'une communication satisfaisante.
IC RSS-GEN, Sec 7.1.2 Warning Statement-(Required for Transmitters w/ detachable antennas)
ENGLISH:
This radio transmitter (identify the device by certification number, or model number if
Category II) has been approved by Industry Canada to operate with the antenna types listed
below with the maximum permissible gain and required antenna impedance for each antenna type
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indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated
for that type, are strictly prohibited for use with this device.
FRENCH:
Le présent émetteur radio (identifier le dispositif par son numéro de certification ou son numéro de modèle
s'il fait partie du matériel de catégorie I) a été approuvé par Industrie Canada pour fonctionner avec les
types d'antenne énumérés ci-dessous et ayant un gain admissible maximal et l'impédance requise pour
chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain
maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur.
IC RSS-102, Sec 2.6 Warning Statements
ENGLISH:
The user manual of devices intended for controlled use shall also include information relating to the
operating characteristics of the device; the operating instructions to ensure compliance with SAR and/or
RF field strength limits; information on the installation and operation of accessories to ensure compliance
with SAR and/or RF field strength limits; and contact information where the user can obtain Canadian
information on RF exposure and compliance. Other related information may also be included.
FRENCH:
Le mode d'emploi des appareils destinés à l'utilisation contrôlée doit aussi inclure des informations sur
les caractéristiques de fonctionnement de l'appareil; les instructions de fonctionnement pour assurer la
conformité avec SAR et / ou les limites d'intensité de champ RF; informations sur l'installation et
l'exploitation d'accessoires pour assurer le respect des SAR et / ou les limites d'intensité de champ RF; et
les coordonnées où l'utilisateur peut obtenir des informations sur l'exposition canadienne de
radiofréquences et la conformité. Autres renseignements connexes peuvent également être inclus.
FCC Part 15.203 Warning Statement Only one of the following permanent attached antennas should be
used with the module in the final product.
PRT-0000196, 5/8 WAVE COLLINEAR, 50Ohm, 3DB, 896-970 MHZ
485026, ANTENNA, TNC, 1/4 WAVE, 900 MHZ, WHIP, 50 Ohm, 0dBi
2PCA-8339-B501, SPLATCH ANTENNA, 902-928MHZ, 50 Ohm, -5.0dBi
2PCA-7675-B102, UNITY-M ANTENNA BOARD, 915MHZ, 50 Ohm, -5.0dBi
2PCA-7602-E001, MKU PCB Loop Antenna, 50Ohm, -5.0dBi
2OPT-8291-A001, Wire antenna 50Ohm, -6dBi
2PCA-8668-A501, Dipole ANTENNA BOARD, 902-928MHZ, 50 Ohm, 1.75dBi
2PCA-8669-A501, PCB Dipole antenna, 902-928MHZ, 50 Ohm, 1.75dBi
The final product will be shipped with specific antenna installed/equipped permanently by Laird to the end
user. Any change/replace/modification RF cable or antenna is prohibited and not possible to the end user.
LRM Radio Module – Host Interface Specification Introduction
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1. Introduction
1.1 Purpose
A new family of RF module, the LRM family, is being developed by Laird. This family includes high-selectivity
radios covering several RF bands used world-wide for remote control applications. They are built around a common
architecture, and present a uniform host interface definition. The host interface is used for data communication and
radio configuration.
1.2 Scope
This document describes the host interface signal definitions, timings, operation mode, available functionalities, and
provide details about its integration to Unity products. This document does not cover RF specifications or power
supply specifications.
1.3 Applicability
Applies to LRM family members, P/N 2PCA-7954-xxxx
1.4 Definitions, Acronyms
1.4.1 Definitions
1.4.2 Acronyms
LRM Radio Module – Host Interface Specification Features Summary
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2. Features Summary
The LRM design addresses in first place Unity applications requirements. Its interface however is general enough to
allow compatibility to other legacy Laird products.
Direct electrical compatibility to Unity RF interface – The interface is defined for natural integration to Unity
product line.
On-board CPU – The interface is controlled by an on-board Renesas CPU. This CPU controls also the details of
operation of the RF peripherals. This approach has several advantages:
a. Unified host interface definition – A single host interface can be defined for all LRM family members.
b. Low requirement on Host CPU resources – The on-board CPU takes care of most aspects of RF control and
timings. This allows releasing CPU resources (processing time, ROM/RAM space, hardware timers) that
become available for more features addition.
c. Simple Host device drivers - Most of driver firmware complexity is transferred on the radio CPU; the Host
device driver is much simpler, easier to test, and not as critical in regard to timings.
Minimum buffers/Minimum Delay – Radio CPU firmware is implemented to provide a “almost transparent”
operation; transmission and reception delays are kept to a minimum
Several interface modes – Several interface modes are supported in order to allow integration with other Laird
legacy products:
a. Data interface - support for synchronous and asynchronous serial link.
b. Configuration interface - support for I2C, SPI and asynchronous serial access.
Stand-alone operation for firmware download and production test – The LRM can interface almost directly to a
PC serial port for firmware download and for testing (no need for CPU board); only a TTL/RS232 translator is
required (such as Laird flashbox).
Support for advanced feature – The LRM family is designed to support advanced features such as FHSS
(Frequency Hopping Spread Spectrum) and Adaptive Channel Allocation, with minimal impact on Host
firmware.
These different aspects are covered in the rest of this document.
LRM Radio Module – Host Interface Specification Host Interface Definition
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3. Host Interface Definition
3.1 Pins Assignment
Description
IO
Signal
Pin
Number
Signal
IO
Description
49
50
GND
Ground
47
48
RX_BB
O
RX Baseband signal
45
46
43
44
41
42
I2C clock /
SPI clock
IO/
O
I2C_SCL /
SPI_SCK
39
40
SPI_PLE
I
SPI Strobe
SPI data input
I
SPI_PDI
37
38
I2C_SDA /
SPI_PDO
IO /
O
I2C Data /
SPI data output
35
36
33
34
31
32
Data transfer Handshaking
Signal
O
!READY
29
30
3.3V DC supply
I
3V3
27
28
Receive data
O
RXD
25
26
TXD
I
Transmit Data
RX Enable
I
!RX_EN
23
24
!TX_EN
I
Tx Enable
Serial port Configuration
mode
I
!CONFIG
21
22
GND
Ground
19
20
DCLK
O
Data Clock
17
18
15
16
13
14
11
12
9
10
Reset
I
!RESET
7
8
CPU flash mode
I
!PGM
5
6
Ground
GND-PA
3
4
GND-PA
Ground
Voltage Supply, RF power
amplifier
I
VPA
1
2
VPA
I
Voltage Supply, RF power
amplifier
Table 3.1 – Host Interface pins assignment
LRM Radio Module – Host Interface Specification Host Interface Definition
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3.2 Signals Description
Pin
Nb
Signal
Name
I/O
Description
Category
1, 2
VPA
Input
Voltage Supply, RF power amplifier.
This supply is needed when an optional piggy-back power amplifier board is
used. Specifications (voltage, current) depend on piggy-back board used.
Power supply
3, 4
GND-PA
GND, RF power amplifier.
This ground is connected internally to the module ground. It does not need to
be connected when the module is used without PA
Power supply
22, 50
GND
System ground
Power supply
27
3V3
Input
3.3 V power supply voltage input (Vcc)
Power supply
5
!PGM
Input
Used to download on-board CPU firmware. Connect this signal to GND at
power-up to force the CPU to enter firmware programming mode. Otherwise,
connect to Vcc or leave unconnected
Module control
7
!RESET
Input
Main reset (active low). When reset is asserted, the content of the internal
registers is lost.
Module control
29
!READY
Output
Handshaking signal for transmit or receive data on the host interface.
Data
Transmission
23
!RX_EN
Input
Receive Enable (active low). Used to place the RF module in received mode
*Note: when !TX_EN and !RX_EN are asserted simultaneously, the module is
placed in STANDBY mode (low power consumption, internal registers
conservation)
Data
Transmission
24
!TX_EN
Input
Transmit Enable (active low). Used to activate telegram transmit process
Data
Transmission
25
RXD
Output
Receive Data.
Data
Transmission
26
TXD
Input
Transmit Data
Data
Transmission
20
DCLK
Output
Data Clock. Active when serial port is configured in Synchronous Mode
Data
Transmission
21
!CONFIG
Input
Used to configure the Data transmission signals RXD and TXD for module
configuration.
Asserting can be done in IDLE state only. Active low
Configuration
interface
37
SPI_PDI
Input
If configuration interface configured for SPI: PDI (Peripheral Data In)
Configuration
interface
38
I2C_SDA
SPI_PDO
Bidi /
Output
If configuration interface configured for:
I2C: I2C SDA signal (data)
SPI: PDO (Peripheral Data Out)
Configuration
interface
39
I2C_SCL
SPI_SCLK
Bidi /
Input
If configuration interface configured for:
I2C: I2C SCL signal (clock)
SPI: SCLK (Serial Clock)
Configuration
interface
40
SPI_PLE
Input
If configuration interface is configured for SPI
PLE: (Peripheral Data Load Enable)
Configuration
interface
48
RX_BB
Output
Analog demodulated RX signal
Data
Transmission
Table 3.2 - Host Interface signals description
LRM Radio Module – Host Interface Specification LRM Configuration Concept
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4. LRM Configuration Concept
All LRM configuration and status parameters are accessible through addressable registers.
- All parameters can be read in any of the following state: IDLE, RX, TX
- All writable parameters can be written in the following state: IDLE only
In order to facilitate adaptation to different platforms, the LRM configuration registers can be accessed using anyone
of three methods: I2C, SPI or serial asynchronous with ASCII strings.
The definition of the configuration registers is given in reference [3]. This section addresses the basic description of
all these three methods.
4.1 I2C
Signals I2C_SDA and I2C_SCL are used, according to the I2C standard protocol.
The LRM I2C configuration interface LRM emulates the behavior of the 1Kbytes I2C E2PROM found in all Unity
RF modules. This way, I2C operation is consistent for all Unity radios.
Device Address: 0xA0 (same as other Unity RF modules)
Device select code:
1 0 1 0 0 A9 A8 R/W
b7 b6 b5 b4 b3 b2 b1 b0
Write operations: supports “Byte write” and “Page write”.
Read operations: supports “Random Address Read” and “Sequential Random Read”.
For more details, refer to the M24C08 serial I2C E2PROM datasheet.
4.2 SPI
Signals SPI_PDO, SPI_PDI, SPI_CLK and SPI_PLE are used.
[TBD: Timings. (the LRM is a clock consumer)]
4.3 Console Interface
The serial interface configuration port is enabled by asserting !CONFIG signal; the serial interface is automatically
reconfigured in asynchronous mode, running at 38400bps, 8N1. All ASCII strings received are interpreted as
configuration commands. This mode is particularly useful for stand-alone testing, when the unit can be controlled
from a PC or by an operator/tester using a terminal emulation program.
4.3.1 “Write” command
wrCmd register value , where:
wrCmd = write command. w or wr can be used and are equivalent
register = register identification. Can use the register name or register address
value = value to be written, in decimal or hexadecimal format. Hexadecimal values are preceded by ‘0x’
Examples:
wr txf 915000000 : Write 915000000 to register txf (Tx frequency)
LRM Radio Module – Host Interface Specification LRM Configuration Concept
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wr 0x80 18 : Write 18 to register address 0x80
wr txf 915000000 0x80 18: Concatenate the two writes above in a single instruction
4.3.2 “Read” command
rdCmd reg where:
rdCmd= read command. r or rd can be used and are equivalent
reg = register identification. Can use the register name or register address
Examples:
rd txf : Reads register txf (Tx frequency)
rd 0x80 : Reads register address 0x80
rd txf 0x80 : Reads registers txf and 0x80 in a single instruction
4.3.3 “Help” command
helpCmd where:
helpCmd= help command. h, help or ? can be used and are equivalent.
The LRM responds with the list off all available configuration registers.
4.4 Stand-Alone Test Mode
The LRM can be operated in stand-alone mode for production/service tests. In this case, only a 3.3VDC supply is
needed, and a RS232/TTL transceiver (like Laird FLASHBOX) to connect to a PC serial port.
21
LRM, host interface
26
RXD
TXD
25
!CONFIG
3V3
GND
27
22
RS232 - TTL transceiver
(ex: Laird FLASHBOX)
3.3VDC
RS232
PC, running automated test
program, or ANSI terminal
emulation software
*Note: The LRM !RX_EN, !TX_EN and !RESET all have internal pull-ups, so they can be left unconnected.
Figure 4.1 - LRM connection for stand-alone operation
The LRM will support several built-in test modes to ease testing from a PC. For example
a. Transmission Tests
- Generation of different type of carrier: unmodulated (CW), or modulated with “101010..” or pseudo-random
sequence
- Automatic generation of test RF frames with predefined content
b. Reception Tests
- Measure PER (packet error rate) when receiving the predefined test RF frames
- Measure RF input level
More details about the test modes can be found in reference [3].
LRM Radio Module – Host Interface Specification LRM Configuration Concept
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4.5 Firmware Download
As shown in Figure 4.2, the LRM firmware can be downloaded using the Laird FLASHBOX, as the rest of Unity
products family. A proper adapter needs to be used to fit to the LRM host interface connector.
5
LRM, host interface
26
RXD
TXD
25
!PGM
3V3
GND
27
22
Laird FLASHBOX
3.3VDC
RS232
PC running FLASHSTA
programming software
Figure 4.2 - LRM firmware programming setup using the FLASHBOX
LRM Radio Module – Host Interface Specification Registers Map Summary
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5. Registers Map Summary
5.1 Registers description fields
The registers are specified by the following parameters
1. Register address: This address can be used from the console, I2C or SPI accesses.
2. Parameter type:
TYPE
Description
BOOL
Boolean value: 0 or 1
UINT8
8 bits value, unsigned
INT8
8 bits value, signed
UINT16
16 bits value, unsigned
INT16
16 bits value, signed
UINT32
32 bits value, unsigned
INT32
32 bits value, signed
CHAR
ASCII-encoded character
3. Array Size: Number of instances of this register. Each instance is referred to by using the keyword appended
with the instance number. Ex: reg0, reg1, reg2, ….
4. Access Type:
Access Type
Description
R
Read only
RW
Read/Write
WP
Write-protected
RWP
Read/Write-protected
“Write protected” registers cannot be written, unless the correct key code has been written in the WP unlock key
register.
5. Keyword: keyword use for console access
6. Description: description printed on the console after a help command.
LRM Radio Module – Host Interface Specification Registers
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6. Registers
6.1 Section 1 Registers: Hardware Information Block
Section 1: Hardware Information Block
Addr
Type
Array
Size
Access
Keyword
Description
Details
0x00
UINT8
1
RWP
id
RF module ID
0x04
CHAR
14
RWP
hwpn
HW Part Number
0x12
CHAR
4
RWP
hwrev
HW Revision
0x16
CHAR
16
RWP
sn
Serial Number
0x26
UINT8
26
RWP
sp
Spare
Reserved for future usage.
0x40
UINT8
1
RWP
cmdef
Default operation mode
0x43
UINT16
1
RWP
crc
HIB CRC (Hardware Info Block)
This section is formatted according the standard Unity RF modules E2PROM data format, described in reference [3].
Hardware Information Block registers are write-protected; writes operations are allowed after the proper key code
has been written in the WP unlock key register
6.1.1 HW Part Number
Hardware part number is a 14 characters ASCII string formatted according to Laird standard part number format;
[4 digits prefix]-[4 digits number]-[4 digits suffix]. Example: “2PCA-7954-A001”
6.1.2 HW Revision
This field is a 4 characters ASCII representation of the HW Revision. Laird hardware parts revision is composed
of 2 segments. The first segment is made of one or two letters followed with one or two optional numerical digits.
revision. Examples: “PP3”, “A”
6.1.3 Serial Number
A 16 digits field is reserved for serial numbers. Serial numbers format is not predefined.
6.1.4 Default Operation mode
Default value for the LRM operation mode. LRM operation modes are described in section 6.
6.2 Section 2 Registers: Software Information Block
Section 2: Software Information Block
Addr
Type
Array
Size
Access
Keyword
Description
Details
0x46
CHAR
14
R
swpn
SW Part Number
Section 3.2.1
LRM Radio Module – Host Interface Specification Registers
Document p/n: 9S02-7954-A501 Rev. A
2015 LAIRD Proprietary and Confidential Page 6-9
0x54
CHAR
10
R
swrev
SW Revision
Section 3.2.2
0x5E
UINT16
1
R
mapver
Register map version
Section 3.2.3
Software Information Block registers are read-only.
6.2.1 SW Part Number
Software part number is a 14 characters ASCII string formatted according to Laird standard part number format;
[4 digits prefix]-[4 digits number]-[4 digits suffix]. Example: “3SOF-7954-A001”
6.2.2 SW Revision
Software revision is given by 3 segments separated by commas. The segments are typically but not restricted to
numbers. Ex: “3.12.7”, “1.2.7B”,
A 10 characters long field is defined.
6.2.3 Register Map Version number
This is number is represented by numerical values. Ex: 1.34;
- The second segment is incremented each time new registers are added to the Register map, and this addition has
no impact on backward compatibility. It is encoded on in the LSB.
- The first segment is incremented each time a change to the Register Map has any impact on backward
compatibility. It is encoded in the MSB.
For example, “1.34” would be encoded as 0x0122.
6.3 Section 5 Registers: RF Interface Configuration
These parameters control the operation of the RF interface.
Section 5: RF Interface Configuration
Addr
Type
Array
Size
Access
Keyword
Description
Details
0x80
UINT32
1
RW
txf
Tx Frequency (Hz)
The new frequency is set at the next transition to
Tx mode
0x84
UINT32
1
RW
rxf
Rx Frequency (Hz)
The new frequency is set at the next transition to
Rx mode
0x88
INT8
1
RW
txp
Tx Level(dBm)
If the Tx level value is outside the range supported
by the radio, the nearest supported value is set and
readback.
0x8a
INT8
1
R
rssi
Current RSSI (dBm)
Reads current RSSI at frequency rxf. (Note: the
LRM shall be in Rx mode)
0x8b
INT8
1
R
prssi
RSSI of last received packet
(dBm)
0x8c
UINT8
1
RW
psize
Max size of received packets
In number of bytes
LRM Radio Module – Host Interface Specification Registers
Document p/n: 9S02-7954-A501 Rev. A
2015 LAIRD Proprietary and Confidential Page 6-10
6.4 Section 7 Registers: Test commands and parameters
This section implements tests utilities that can be used for development, production and service.
Section 7: Test Commands and Parameters
- Registers content after system reset is zero
Addr
Type
Size
Access
Keyword
Description
Details
0xe0
UINT8
1
W
test
Test Mode
0xe4
UINT32
7
RW
testp
Test Parameters
LRM Radio Module – Host Interface Specification Test-Specific Parameters
Document p/n: 9S02-7954-A501 Rev. A
2015 LAIRD Proprietary and Confidential Page 7-11
7. Test-Specific Parameters
Test Mode
value
Parameters
NO_TEST
0
None
TX_CW
1
None
TX_1010
2
None
TX_PRBS
3
None
TX_PACKETS_PRANDOM
4
None
TX_PACKETS_PDEFINED
5
testp0: packet data
RX_RSSI
81
None
RX_STATS
82
None
RX_PACKETS
83
None
RX_BER0
84
testp0:
Calculation window, in msec (default = 200msec). Result is
printed after each window time.
testp1:
Calculation result from the last window
RX_BER1
85
testp0:
Calculation window, in msec (default = 200msec)
testp1:
Calculation result from the last window